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Abstract: A series of organotin(IV) complexes with O,O-diethyl phosphoric acid (L1H) and O,O-diisopropyl phosphoric acid (L2H) of the types: [R3Sn·L] n (L=L1, R=Ph 1, R=PhCH2 2, R=Me 3, R=Bu 4; L=L2, R=Ph 9, R=PhCH2 10, R=Me 11, R=Bu 12), [R2Cl Sn·L] n (L=L1, R=Me 5, R=Ph 6, R=PhCH2 7, R=Bu 8; L=L2, R=Me 13, R=Ph 14, R=PhCH2 15, R=Bu 16), have been synthesized. All complexes were characterized by elemental analysis, TGA, IR and NMR (1H, 13C, 31P and 119Sn) spectroscopy analysis. Among them, complexes 1, 2, 3, 5, 8, 9 and 11 have been characterized by X-ray crystallography diffraction analysis. In the crystalline state, the complexes adopt infinite 1D infinite chain structures which are generated by the bidentate bridging phosphonate ligands and the five-coordinated tin centers. [Copyright &y& Elsevier]

The structure of the title compound, [Sn4(C7H7)8(C7HF4O2)4O2], features a central Sn2O2 unit with two additional Sn atoms linked by the μ3-oxo atoms. Two pairs of Sn atoms are bridged by two bidentate 2,3,4,5-tetra­fluoro­benzoate ligands. Two of the Sn atoms are also each coordinated by a monodentate 2,3,4,5-tetra­fluoro­benzoate ligand. The geometry around each five-coordinated Sn center is distorted trigonal bipyramidal. [ABSTRACT FROM AUTHOR]